@page "/parent"

<h2>Parent:</h2>
<h2>@Msg</h2>
<h3>@DealName</h3>

<Child></Child>

@code {
    [Parameter]
    public string Msg { get; set; } = "Hello Blazor";

    [CascadingParameter(Name = "DealName")]
    public string DealName { get; set; }
}